Seed Collection and Storage : Pods are collected in September to October, immersed in water for 10 to 15 days and then dried for 2 to 3 days in sun and beaten up to separate the seed. The viability is retained upto 2 years.

Pretreatment : Seeds placed in boiling water and allowed to soak for 5 days or soaking the seed in cold water for 10 days.